If you are in a country other than the U.S. Or purchased your product in a country other than the U.S., please contact your STIHL Distributor or Dealer in that country to obtain the appropriate Instruction Manual. Read and follow all safety precautions in the Instruction Manual. Improper use can cause serious or fatal injury. Stihl Power Equipment Service Manuals. Chainsaws Electric Chainsaws Cut-Off Saws Blowers Powerheads Trimmers Hedge Trimmers Edgers KombiSystems 'Service Manual' is a generic term we use to describe Repair Manuals, Technical Manuals, Workshop Manuals, Shop Manuals, etc.
Stihl Chain Saws 021 023 025 service manual and 021, 023, 024 025 Parts Spare Parts List
Stihl 021 023 025 Chain Saws & Parts Workshop Service Repair Manual
This Stihl service manual contains detailed descriptions of all the repair and servicing procedures specific to this power tool series. There are separate handbooks for servicing procedures for standardized parts and assemblies that are installed in several STIHL power tool models. Reference is made to these handbooks in the appropriate chapters in this manual. As the design concept of model 021, 023 and 025 chainsaws is almost identical, the descriptions and servicing procedures in this manual generally apply to all three models. Differences are described in detail.
021-023-025 Service Manual
This Service Repair Manual Covers:
Free Stihl Chainsaw Repair Manual
CONTENTS 1
1. SAFETY PRECAUTIONS 1
2. INTRODUCTION 2
3. SPECIFICATIONS 3
3.1 Engine 3
3.2 Fuel System 3
3.3 Ignition System 4
3.4 Cutting Attachment 4
3.5 Special Accessories 4
3.5.1 For User 4
3.5.2 For Service 4
3.6 Tightening Torques 5
4. CLUTCH, CHAINDRIVE, CHAINBRAKE, CHAINTENSIONER 6
4.1 Clutch Drum/Chain Sprocket 6
4.2 Chain Catcher 7
4.3 Clutch 7
4.4 Chain Brake 8
4.4.1 Checking Function 8
4.4.2 Disassembly 8
4.4.3 Assembly 10
4.5 Front Chain Tensioner 12
4.6 Side Chain Tensioner 12
5. ENGINE 13
5.1 Exhaust Muffler/Spark Arresting Screen 13
5.2 Leakage Test 14
5.2.1 Preparations 14
5.2.2 Pressure Test 15
5.2.3 Vacuum Test 15
5.3 Oil Seals 16
5.4 Removing and Installing 18
5.5 Cylinder 18
5.6 Piston 20
5.7 Piston Rings 22
5.8 Crankshaft 22
5.9 Connecting Rod( 021 up to Serial No. X 34 944 402) 23
5.10 Decompression Valve 24
6. IGNITIONSYSTEM 24
6.1 Spark Plug Boot 24
6.2 Ignition Lead 25
6.3 Ignition Module 25
6.3.1 Ignition Timing 26
6.3.2 Removing and Installing 26
6.4 Flywheel 27
7. REWIND STARTER 28
7.1 Routine Maintenance 28
7.2 Rewind Spring 28
7.2.1 Replacing 28
7.2.2 Tensioning 29
8. AV HANDLE SYSTEM/HANDLE HOUSING 30
8.1 Annular Buffers 30
8.2 Front Handle 31
8.3 Handle Housing 31
8.4 Switch Shaft 33
8.5 Contact Spring 34
8.6 Throttle Trigger/Interlock Lever 34
9. CHAIN LUBRICATION 36
9.1 Pickup Body 36
9.2 Connector/Suction Hose 36
9.3 Vent Valve 37
9.4 Worm 38
9.5 Oil Pump 38
10. FUEL SYSTEM 39
10.1 Air Filter 39
10.2 Carburetor 41
10.2.1 Leakage Test 41
10.2.2 Removing and Installing 42
10.2.3 Adjustment (except 023 L and USA) 43
10.2.4 Adjustment (023 L and USA) 44
10.3 Tank Vent 45
10.4 Pickup Body 46
10.5 Suction Hose 46
10.6 Manual Fuel Pump 47
10.6.1 Fuel Hoses 47
10.7 Fuel Tank 48
11. Special Servicing Tools and Aids 50
11.1 Special Servicing Tools 50
11.2 Servicing Aids 52
021 – 1123 53
024 – 1121 111
025 – 1123 159
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File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
- Stihl 009 Chain Saw
- Stihl 010 / 011 Chain Saw
- Stihl 015 Chain Saw
- Stihl 017 / 018 Chain Saw
- Stihl 019T Chain Saw
- Stihl 020T Chain Saw- Stihl 021 / 023 / 025 Chain Saw
- Stihl 024 Chain Saw
- Stihl 026 Chain Saw
- Stihl 028 Chain Saw
- Stihl 029 / 039 Chain Saw
- Stihl 031 Chain Saw
- Stihl 032 Chain Saw
- Stihl 034 Chain Saw
- Stihl 036 Chain Saw
- Stihl 036 QS Chain Saw
- Stihl 038 Chain Saw- Stihl 041 Farm Boss Chain Saw
- Stihl 044 Chain Saw
- Stihl 046 Chain Saw
- Stihl 048 Chain Saw- Stihl 050 / 051 (1111) Chain Saw
- Stihl 064 / 066 Chain Saw
- Stihl 066 Chain Saw
- Stihl 070 (1106) Chain Saw
- Stihl 08 S Chain Saw
- Stihl E 20 Electric Chain Saw
- Stihl E 220 Electric Chain Saw
- Stihl GS 461 Chain Saw
- Stihl HT 100 / HT 101 / HT 130 / HT 131 Pole Pruner (2008)
- Stihl HT 100 / HT 101 / HT 130 / HT 131 Pole Pruner (2011)
- Stihl HT 100 / HT 101 / HT 130 / HT 131 Pole Pruner (2016)
- Stihl HT 102 / HT 103 / HT 132 / HT 133 Pole Pruner
- Stihl HT 250 Pole Pruner
- Stihl HT 70 / HT 75 Pole Pruner
- Stihl HT-KM Pole Pruner
Stihl Chainsaw Model 025
- Stihl HT Pole Pruner Attachment
- Stihl MS 150 TC Chain Saw
Stihl 025 Chainsaw Price
- Stihl MS 170 / MS 180 Chain Saw (2005)- Stihl MS 170 / MS 180 Chain Saw (2006)
- Stihl MS 170 / MS 180 Chain Saw (2007)
- Stihl MS 170 / MS 180 Chain Saw (2011)
- Stihl MS 170 / MS 180 Chain Saw (2015)
- Stihl MS 170 / MS 180 Chain Saw (2016)
- Stihl MS 170 / MS 180 Chain Saw (2017)
- Stihl MS 171 / MS 181 / MS 211 (2010)
- Stihl MS 171 / MS 181 / MS 211 (2011)
- Stihl MS 192 Chain Saw (2010)
- Stihl MS 192 Chain Saw (2011)
- Stihl MS 192 T Chain Saw (2006)
- Stihl MS 192 T Chain Saw (2007)
- Stihl MS 192 T Chain Saw (2011)
- Stihl MS 193 Chain Saw
- Stihl MS 193 T Chain Saw
- Stihl MS 200 Chain Saw
- Stihl MS 200 T Chain Saw (2007)
- Stihl MS 200 T Chain Saw (2011)
- Stihl MS 201 Chain Saw (2011)
- Stihl MS 201 Chain Saw (2012)
- Stihl MS 201 T Chain Saw (2011)
- Stihl MS 201 T Chain Saw (2012)
- Stihl MS 201 T Chain Saw (2014)
- Stihl MS 201 TC-M Chain Saw
- Stihl MS 210 / MS 230 / MS 250 Chain Saw (2006)
- Stihl MS 210 / MS 230 / MS 250 Chain Saw (2008)
- Stihl MS 210 / MS 230 / MS 250 Chain Saw (2011)
- Stihl MS 210 / MS 230 / MS 250 Chain Saw (2012)
- Stihl MS 231 / MS 251 Chain Saw (2017)
Stihl 025 Chainsaw Owners Manual
Stihl Model 025 Chainsaw Specs
- Stihl MS 241 C-M Chain SawStihl 025 Chainsaw Parts Diagram
- Stihl MS 250 Chain Saw
Stihl 025 Chainsaw Chain
- Stihl MS 251 Chain Saw (2019)
- Stihl MS 260 Chain Saw (2006)
- Stihl MS 260 Chain Saw (2007)
- Stihl MS 261 Chain Saw
- Stihl MS 261 C-M Chain Saw (2013)
- Stihl MS 261 C-M Chain Saw (2016)
- Stihl MS 261 C-MQ Chain Saw
- Stihl MS 261 C-Q Chain Saw
- Stihl MS 271 / MS 291 Chain Saw (0000003104_002_GB)
- Stihl MS 271 / MS 291 Chain Saw (0000003098_002_GB)
- Stihl MS 290 / MS 310 / MS 390 Chain Saw
- Stihl MS 311 / MS 391 Chain Saw (2009)
- Stihl MS 311 / MS 391 Chain Saw (2016)
- Stihl MS 341 / MS 361 Chain Saw
- Stihl MS 361 C Chain Saw
- Stihl MS 362 Chain Saw (2011)
- Stihl MS 362 Chain Saw (2017)
- Stihl MS 362 C-Q Chain Saw
- Stihl MS 440 Chain Saw
- Stihl MS 441 Chain Saw
- Stihl MS 441 C Chain Saw (2008)
- Stihl MS 441 C-M Chain Saw (2011)
- Stihl MS 441 C-M Chain Saw (2017, VA1.H17)
- Stihl MS 441 C-M Chain Saw (2017, VA1.J17)
- Stihl MS 460 Chain Saw
- Stihl MS 461 Chain Saw
- Stihl MS 461 Rescue Saw
- Stihl MS 650 / MS 660 Chain Saw (2006)
- Stihl MS 650 / MS 660 Chain Saw (2011)
- Stihl MS 880 Chain Saw (2004)
- Stihl MS 880 Chain Saw (2016)
- Stihl MS Toy Chain Saw
- Stihl MSA 120 C / MSA 140 C Chain Saw
- Stihl MSA 160 C Chain Saw
- Stihl MSA 160 C / MSA 200 C Chain Saw
- Stihl MSE 140 / MSE 160 / MSE 180 / MSE 200 Chain Saw
- Stihl MSE 170 C / MSE 210 C Chain Saw
- Stihl MSE 220 Electric Chain Saw (2006)
- Stihl MSE 220 Electric Chain Saw (2009)
Technical information:
- Stihl HT 100 / HT 101 / HT 130 / HT 131 Series 4182 Pole Pruner
- Stihl MS 192 T Series 1137 Tree Surgery Chain Saw
- Stihl MS 251 Series 1143 Chain Saw (2012)
Parts lists:
- Stihl 08 S Chain Saw
- Stihl 010 / 011 Chain Saw
- Stihl 015 (1116) Chain Saw
- Stihl 017 Chain Saw
- Stihl 018 (1130) Chain Saw
- Stihl 019T Chain Saw
- Stihl 020 (1114) Chain Saw
- Stihl 021 / 023 / 025 Chain Saw (1996)
- Stihl 021 / 023 / 025 Chain Saw (2005)
- Stihl 026 (1121) Chain Saw
- Stihl 028 Chain Saw
- Stihl 029 / 039 (1127) Chain Saw
- Stihl 034 (1125) Chain Saw
- Stihl 038 Chain Saw
- Stihl 041 AV Chain Saw
- Stihl 045 (1115) Chain Saw
- Stihl 046 Chain Saw
- Stihl 070 Chain Saw
- Stihl 075 (1111) Chain Saw
- Stihl 084 (1124) Chain Saw
- Stihl 088 (1124) Chain Saw
- Stihl 090 / 090G Chain Saw
- Stihl HT 70 / HT 75 Pole Pruner
- Stihl HT 100 / HT 101 (4182) Pole Pruner
- Stihl MS 170 / MS 170C (1130) Chain Saw
- Stihl MS 180 / MS 180 C Chain Saw (July 2004)
- Stihl MS 180 / MS 180 C Chain Saw (March 2006)
- Stihl MS 181 / MS 181 C Chain Saw
- Stihl MS 190 T (1132) Chain Saw
- Stihl MS 192 T / MS 192 TC Chain Saw
- Stihl MS 200 / MS 200 T Chain Saw
- Stihl MS 200 / MS 200 T (1129) Chain Saw
- Stihl MS 201 T / MS 201 TC Chain Saw
- Stihl MS 210 / MS 230 / MS 250 (1123) Chain Saw (17 pages)
- Stihl MS 210 / MS 230 / MS 250 (1123) Chain Saw (52 pages)
- Stihl MS 211 / MS 211 C Chain Saw
- Stihl MS 260 (1121) Chain Saw
- Stihl MS 270 / MS 270 C / MS 280 / MS 280 C (1133) Chain Saw
- Stihl MS 271 / MS 271 C / MS 291 / MS 291 C Chain Saw
- Stihl MS 290 / MS 310 / MS 390 (1127) Chain Saw
- Stihl MS 311 / MS 391 Chain Saw
- Stihl MS 362 / MS 362 C Chain Saw
- Stihl MS 440 Chain Saw
- Stihl MS 441 (1138) Chain Saw
- Stihl MS 441 / MS 441 C (1138) Chain Saw (Mar 2006)
- Stihl MS 460 (1128) Chain Saw
- Stihl MS 660 (1122) Chain Saw
- Stihl MS 660 / MS 660 W / MS 660 Magnum / MS 660 Magnum R / MS 660 Arctic / MS 660 Magnum BR (1122) Chain Saw (July 2004)
- Stihl MS 660 / MS 660-W / MS 660-Magnum / MS 660-R Magnum / MS 660-Arctic / MS 660-Magnum BR Chain Saw (Mar 2009)
- Stihl MS 880 (1124) Chain Saw
- Stihl MSE 220 / MSE 220 C (1207) Chain Saw
- Stihl PP 900 / PP 700 / PS 10 / PS 30 / PS 40 / PS 60 / PS 70 / PS 90 / PS 75 / PS 80
Service manuals:
- Stihl 009 / 010 / 011 Chain Saw
- Stihl 015 / 015AV / 015AVE / 015L / 015LE 32cc Chain Saw
- Stihl 017 / 018 Chain Saw
- Stihl 019 T Chain Saw
- Stihl 021 / 023 / 025 Chain Saw
- Stihl 029 / 039 Chain Saw
- Stihl 034 / 036 / 036 QS Chain Saw
- Stihl MS 171 / MS 181 / MS 211 Chain Saw
- Stihl MS 192 T Chain Saw
- Stihl MS 201 / MS 201 T Chain Saw
- Stihl MS 210 / MS 230 / MS 250 Chain Saw (2002)
- Stihl MS 210 / MS 230 / MS 250 Chain Saw (2003)
- Stihl MS 231 / MS 231 C / MS 251 / MS 251 C Chain Saw
- Stihl MS 290 / MS 310 / MS 390 Chain Saw
- Stihl MS 311 / MS 391 Chain Saw
- Stihl MS 341 / MS 361 Chain Saw
- Stihl MS 362 / MS 362 C Chain Saw
- Stihl MS 441 Chain Saw (June 2006)
- Stihl MS 460 Chain Saw
- Stihl MS-650 / MS-660 Chain Saw (Sept 2007)
Service bulletins:
- DLR 03.2010: STIHL Incorporated Technical Information
Recall notices:
- Stihl MS 361 C Chain Saw (Dec 2010)
Other Stihl documentation:
- Sharpening Stihl Chain Saws (2012)
- Stihl 2006 Northeast eDSM
- Stihl 2016 Technical Reference Guide
- Stihl Carburetors Service Manual (1999)
- Stihl Chain Saw Safety Manual (1999)
- Stihl Chain Saw Safety Manual (2009)
- Stihl Chain Saw Safety Manual (2012)
- Stihl Chain Saw Safety Manual (2017)
- Stihl Chain Saw Specifications
- Stihl Saw Chain Selection & Identification
- Stihl Saw Chain Wear Guide